From the Manufacturer
Overview: You take your notebook PC everywhere. That’s why the Arc™ Mouse is designed to go with you. Expanded, it’s a sturdy and comfortable full-sized mouse. Folded, it fits perfectly into your bag. Features:    Folds for PortabilityDesigned for comfort, the Arc Mouse folds to 60% of its fully expanded size, with the folding motion controlling turning the mouse on and off.  Scroll WheelFor easy navigation.  Strong HingeMade of metal for durability.            Micro-TransceiverSnaps into the bottom of the mouse.  Battery status indicatorChanges color to indicate when the battery needs to be replaced.    Additional Features: 2.4 GHz wireless with up to 30-foot range Laser tracking 4 buttons Carrying case included   System Requirements:Windows Vista®/Windows XP or Mac OS X v10.2–10.5 Po (more…)